[amazon_textlink asin=’B01M05030B’ text=’The Roku Ultra 4K Ultra HD media player’ template=’ProductLink’ store=’hc005-20′ marketplace=’US’ link_id=’35ae75dc-1fa5-11e7-ba41-2b9002126002′] Roku just upgraded the firmware in its media player and Roku TV operating system to monitor what users watch on live TV to help make meaningful recommendations for over-the-top (OTT)…